Rename posted to requestedPresent for getFrameTimestamps

Test: Just a rename.

Change-Id: I63aa5b1b84715de2bebffb25f92bd826323a9acb
diff --git a/include/gui/FrameTimestamps.h b/include/gui/FrameTimestamps.h
index 4dc7467..17352cc 100644
--- a/include/gui/FrameTimestamps.h
+++ b/include/gui/FrameTimestamps.h
@@ -25,7 +25,7 @@
 struct FrameTimestamps : public LightFlattenablePod<FrameTimestamps> {
     FrameTimestamps() :
         frameNumber(0),
-        postedTime(0),
+        requestedPresentTime(0),
         acquireTime(0),
         refreshStartTime(0),
         glCompositionDoneTime(0),
@@ -33,7 +33,7 @@
         releaseTime(0) {}
 
     uint64_t frameNumber;
-    nsecs_t postedTime;
+    nsecs_t requestedPresentTime;
     nsecs_t acquireTime;
     nsecs_t refreshStartTime;
     nsecs_t glCompositionDoneTime;